|
1
|
Seekaew Y, Tammanoon N, Tuantranont A, Lomas T, Wisitsoraat A, Wongchoosuk C. Conversion of Carbon Dioxide into Chemical Vapor Deposited Graphene with Controllable Number of Layers via Hydrogen Plasma Pre-Treatment. MEMBRANES 2022; 12:membranes12080796. [PMID: 36005711 PMCID: PMC9412882 DOI: 10.3390/membranes12080796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/14/2022] [Accepted: 08/16/2022] [Indexed: 06/04/2023]
Abstract
In this work, we report the conversion of carbon dioxide (CO2) gas into graphene on copper foil by using a thermal chemical vapor deposition (CVD) method assisted by hydrogen (H2) plasma pre-treatment. The synthesized graphene has been characterized by Raman spectroscopy, X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The results show the controllable number of layers (two to six layers) of high-quality graphene by adjusting H2 plasma pre-treatment powers (100-400 W). The number of layers is reduced with increasing H2 plasma pre-treatment powers due to the direct modification of metal catalyst surfaces. Bilayer graphene can be well grown with H2 plasma pre-treatment powers of 400 W while few-layer graphene has been successfully formed under H2 plasma pre-treatment powers ranging from 100 to 300 W. The formation mechanism is highlighted.
Collapse
Affiliation(s)
- Yotsarayuth Seekaew
- Graphene and Printed Electronics Research Division (GPERD), National Security and Dual-Use Technology Center, National Science and Technology Development Agency, 111 Thailand Science Park, Phahon Yothin Road, Klong Nueng, Klong Luang, Phathum Thani 12120, Thailand
- Department of Physics, Faculty of Science, Ramkhamhaeng University, Bang Kapi, Bangkok 10240, Thailand
| | - Nantikan Tammanoon
- Graphene and Printed Electronics Research Division (GPERD), National Security and Dual-Use Technology Center, National Science and Technology Development Agency, 111 Thailand Science Park, Phahon Yothin Road, Klong Nueng, Klong Luang, Phathum Thani 12120, Thailand
| | - Adisorn Tuantranont
- Graphene and Printed Electronics Research Division (GPERD), National Security and Dual-Use Technology Center, National Science and Technology Development Agency, 111 Thailand Science Park, Phahon Yothin Road, Klong Nueng, Klong Luang, Phathum Thani 12120, Thailand
| | - Tanom Lomas
- Graphene and Printed Electronics Research Division (GPERD), National Security and Dual-Use Technology Center, National Science and Technology Development Agency, 111 Thailand Science Park, Phahon Yothin Road, Klong Nueng, Klong Luang, Phathum Thani 12120, Thailand
| | - Anurat Wisitsoraat
- Graphene and Printed Electronics Research Division (GPERD), National Security and Dual-Use Technology Center, National Science and Technology Development Agency, 111 Thailand Science Park, Phahon Yothin Road, Klong Nueng, Klong Luang, Phathum Thani 12120, Thailand
| | - Chatchawal Wongchoosuk
- Department of Physics, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
| |
Collapse
|
|
2
|
Abstract
Fermented foods and beverages have become a part of daily diets in several societies around the world. Emitted volatile organic compounds play an important role in the determination of the chemical composition and other information of fermented foods and beverages. Electronic nose (E-nose) technologies enable non-destructive measurement and fast analysis, have low operating costs and simplicity, and have been employed for this purpose over the past decades. In this work, a comprehensive review of the recent progress in E-noses is presented according to the end products of the main fermentation types, including alcohol fermentation, lactic acid fermentation, acetic acid fermentation and alkaline fermentation. The benefits, research directions, limitations and challenges of current E-nose systems are investigated and highlighted for fermented foods and beverage applications.
Collapse
|